Digital Modulation - ASK, FSK, PSK, QAM Techniques (Main Project)

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Home » C++ Home » Algorithms Home » Digital Modulation - ASK, FSK, PSK, QAM Techniques (Main Project)

A D V E R T I S E M E N T

Title	Digital Modulation - ASK, FSK, PSK, QAM Techniques (Main Project)
Author	Arsalan Akhtar
Author Email	arsalan.akhtar [at] gmail.com
Description	Digital Modulation Techniques are those echniques through which we convert digital signals into analog signal which can be transmitted through transmission medium...this program demostrate some of the basics techniques
Category	C++ » Algorithms
Hits	397729
Code	Select and Copy the Code
Code : #include <iostream.h> #include <conio.h> #include <math.h> #include <graphics.h> #include <process.h> #include <dos.h> #include <stdlib.h> #include <stdio.h> #include <string.h> #define tcpath "d:\tc\bgi" #define yvalue 180 #define yvalue2 300 #define lineweight 3 #define bdweight 10 #define pi 3.1415 ////////////////////// int main_c_hz=90, main_c_amplitude=15, main_sr =2000; float main_c_frequency; int main_c_angle=90; int main_c_phase; int main_c_lcycle=200,main_temp; float main_c_sine_value[1000]; /////////////////////////////////// char bd_4main[20]="101011101"; int y1=yvalue-20,x1=200,y2=yvalue; ////////////////////////////////////carrier signal values char bd_4signal[9]; int y12=yvalue2-40,x12=40,y22=yvalue2; int c_hz=20, c_amplitude=25, sr =4000; float c_frequency; int c_angle; int c_phase; int c_lcycle=400,temp; float c_sine_value[1000]; ////////////////////////////////////carrier 4 qam char bd_4qam[25]; //////////////////////////////////// struct ASK { float frequency,sine_value[1000]; int phase; int amp0,amp1; int x; int noiseVal; }ask; int ask_sr=700,ask_lcycle=70; /////////////////////////////////// struct FSK { float sine_value[1000]; int hz0,hz1; int phase; int amp; int x; }fsk; int fsk_sr=700,fsk_lcycle=70; /////////////////////////////////// struct PSK { float sine_value[1000]; float frequency; int ang1,ang0; int phase0,phase1; int amp; int x; }psk; int psk_sr=700,psk_lcycle=70; /////////////////////////////////// struct QAM { float sine_value[1000]; float frequency; int ang1,ang2,ang3,ang4; int phase1,phase2,phase3,phase4; int amp1,amp2; int x; }qam; int qam_sr=700,qam_lcycle=70; /////////////////////////////////// void initialgraph(void); void mainpage(void); void createmenu(void); //////////////////////////////////// void creategraph_4main(void); void createDsignal_4main(void); void dsignal4_0_4main(int); void dsignal4_1_4main(int); void calc_sinewave_4main(); void create_simple_wave_4main(); void create_analoggraph_4main(); /////////////////////////////////// void askHandler(void); void fskHandler(void); void pskHandler(void); void qamHandler(void); void helpHandler(void); void exitHandler(void); ///////////////////////////// void carrierDataBox(); int carrierInputFun(); void askDataBox(); int askInputFun(); void fskDataBox(); int fskInputFun(); void pskDataBox(); int pskInputFun(); void qamDataBox(); int qamInputFun(); void graphicText(int x,int y,char ch); //////////////////////////////// void calc_sinewave(); void view_data(); void create_simple_wave(); void create_graph(); void show_int_graph(int val,int l,int x,int y); void creategraph_digital(void); void createDsignal_digital(void); void dsignal4_0_digital(int); void dsignal4_1_digital(int); ///////////////////////////// void calc_ask_sinewave(int); void calc_askN_sinewave(int); void ask_main(); void askN_main(); void create_ask_waves(); void create_graph_ask(); ///////////////////////////// void calc_fsk_sinewave(int); void fsk_main(); void create_fsk_waves(); void create_graph_fsk(); ///////////////////////////// void calc_psk_sinewave(int); void psk_main(); void create_psk_waves(); void create_graph_psk(); ///////////////////////////// void carrierDataBox_4qam(); int carrierInputFun_4qam(); void showDtable(); void creategraph_Dqam(void); void createDsignal_Dqam(void); void dsignal4_0_Dqam(int); void dsignal4_1_Dqam(int); void calc_qam_sinewave(int,int); void qam_main(); void create_qam_waves(); void create_graph_qam(); void showDtable2(); ///////////////////////////// void main() { initialgraph(); mainpage(); } ///////////////////////////// void initialgraph() { int gd=DETECT, gm; initgraph(&gd, &gm, tcpath); } ///////////////////////////// void mainpage() { y1=yvalue-20;x1=200;y2=yvalue; setfillstyle(1,1); bar(70,20,570,22); bar(70,65,570,67); setfillstyle(1,9); bar(70,22,570,64); setcolor(15); settextstyle(7,0,4); outtextxy(80,20,"Digital to Analog Modulation"); setfillstyle(1,1); bar(190-2,120-2,410+2,190+2); bar(190-2,310-2,410+2,390+2); setcolor(1); setfillstyle(1,9); bar(190,120,410,190); bar3d(248,230,333,275,10,1); bar(190,310,410,390); setfillstyle(1,1); bar(295,194,305,220); bar(295,277,305,305); setcolor(15); settextstyle(2,0,4); outtextxy(252,240,"Digital/Analog"); outtextxy(252,252," Modulation"); creategraph_4main(); createDsignal_4main(); calc_sinewave_4main(); create_simple_wave_4main(); create_analoggraph_4main(); setfillstyle(1,1); bar(460-2,240-2,520+2,265+2); bar(460-2,160-2,520+2,185+2); bar(460-2,320-2,520+2,345+2); setcolor(1); setlinestyle(1,1,9); line(344,252,458,252); line(440,172,440,333); line(440,172,460,172); line(440,333,460,333); line(540,172,540,333); line(520,172,540,172); line(520,333,540,333); line(540,252,560,252); bar(560-2,240-2,620+2,265+2); setfillstyle(1,9); bar(460,240,520,265); bar(460,160,520,185); bar(460,320,520,345); bar(560,240,620,265); setcolor(15); settextstyle(2,0,5); outtextxy(480,165,"ASK"); outtextxy(480,245,"FSK"); outtextxy(480,325,"PSK"); outtextxy(580,245,"QAM"); createmenu(); //getch(); } //////////////////////////// void createmenu() { setfillstyle(1,8); bar(3,117,110,248); setfillstyle(1,1); bar(1,117,107,245); setfillstyle(1,9); bar(4,120,104,242); setfillstyle(1,1); bar(1,120,107,122); bar(1,140,107,142); bar(1,160,107,162); bar(1,180,107,182); bar(1,200,107,202); bar(1,220,107,222); bar(1,240,107,242); setcolor(15); settextstyle(2,0,5); outtextxy(38,122,"ASK"); outtextxy(38,142,"FSK"); outtextxy(38,162,"PSK"); outtextxy(38,182,"QAM"); outtextxy(38,202,"ABOUT-US"); outtextxy(38,222,"EXIT"); int x=4,y=124; int choice=1; setfillstyle(1,15); setcolor(9); bar(x,y,x+100,y+19-4); outtextxy(38,122,"ASK"); char ch; setfillstyle(1,1); bar(1,441,639,444); bar(1,476,639,479); setfillstyle(1,9); bar(1,445,639,475); while(1) { //getch(); switch (choice) { case 1: { setcolor(15); setfillstyle(1,9);bar(1,445,639,475); outtextxy(10,450,"Amplitude Shift Keying Technique");break; } case 2: { setcolor(15); setfillstyle(1,9);bar(1,445,639,475); outtextxy(10,450,"Frequency Shift Keying Technique");break; } case 3: { setcolor(15); setfillstyle(1,9);bar(1,445,639,475); outtextxy(10,450,"Phase Shift Keying Technique");break; } case 4: { setcolor(15); setfillstyle(1,9);bar(1,445,639,475); outtextxy(10,450,"QAM");break; } case 5: { setcolor(15); setfillstyle(1,9);bar(1,445,639,475); outtextxy(10,450,"Team profile and contact");break; } case 6: { setcolor(15); setfillstyle(1,9);bar(1,445,639,475); outtextxy(10,450,"Exit");break; } } setfillstyle(1,9); setcolor(15); switch(getch()) { case 80: {if (choice == 6)choice=1;else choice+=1;break;} case 72: {if (choice == 1)choice=6;else choice-=1;break;} //case '0': exit(0); case ' ': { if (choice == 1) askHandler(); else if (choice == 2) fskHandler(); else if (choice == 3) pskHandler(); else if (choice == 4) qamHandler(); else if (choice == 5) helpHandler();else if (choice == 6) exit(0);//exitHandler(); } } if (choice == 1) { bar(x,y+(195),x+100,y+(196));outtextxy(38,222,"EXIT"); bar(x,y+19,x+100,y+(192));outtextxy(38,142,"FSK"); } if (choice == 2) { bar(x,y,x+100,y+19);outtextxy(38,122,"ASK"); bar(x,y+(192),x+100,y+(193));outtextxy(38,162,"PSK"); } if (choice == 3) { bar(x,y+19,x+100,y+(192));outtextxy(38,142,"FSK"); bar(x,y+(193),x+100,y+(194));outtextxy(38,182,"QAM"); } if (choice == 4) { bar(x,y+(192),x+100,y+(193));outtextxy(38,162,"PSK"); bar(x,y+(194),x+100,y+(195));outtextxy(38,202,"ABOUT-US"); } if (choice == 5) { bar(x,y+(193),x+100,y+(194));outtextxy(38,182,"QAM"); bar(x,y+(195),x+100,y+(196));outtextxy(38,222,"EXIT"); } if (choice == 6) { bar(x,y+(194),x+100,y+(195));outtextxy(38,202,"ABOUT-US"); bar(x,y,x+100,y+19);outtextxy(38,122,"ASK"); } setfillstyle(1,15); setcolor(9); if (choice == 1) { bar(x,y,x+100,y+19);outtextxy(38,122,"ASK"); } if (choice == 2) {bar(x,y+19,x+100,y+(192));outtextxy(38,142,"FSK");} if (choice == 3) {bar(x,y+(192),x+100,y+(193));outtextxy(38,162,"PSK");} if (choice == 4) {bar(x,y+(193),x+100,y+(194));outtextxy(38,182,"QAM");} if (choice == 5) {bar(x,y+(194),x+100,y+(195));outtextxy(38,202,"ABOUR-US");} if (choice == 6) {bar(x,y+(195),x+100,y+(196));outtextxy(38,222,"EXIT");} setfillstyle(1,1); bar(1,120,107,122); bar(1,140,107,142); bar(1,160,107,162); bar(1,180,107,182); bar(1,200,107,202); bar(1,220,107,222); bar(1,240,107,242); } } //////////////////////////////////////////////// void creategraph_4main() { int cgx1=200,cgy1=130, cgx2=400,cgy2=yvalue; setcolor(15); setlinestyle(0,1,3); line(cgx1,cgy1,cgx1,cgy2); line(cgx1,cgy2,cgx2,cgy2); setcolor(8); setlinestyle(1,1,1); for(int i = cgx1+20; i<cgx2;i+=20) line(i,cgy1,i,cgy2); //getch(); } ///////////////////////////////////////////////////// void createDsignal_4main() { setcolor(1); int len=strlen(bd_4main); for (int i=0;i<len-1;i++) { if(bd_4main[i] == '0') { dsignal4_0_4main(i+1); } else { dsignal4_1_4main(i+1); } } } ////////////////////////////////////////////////////// void dsignal4_0_4main(int pos) { setcolor(1); setlinestyle(0,1,lineweight); int x=x1;x1+=20; if (pos == 1 \|\| (pos != 1 && bd_4main[pos-2] == '0')) line(x,y2,x+20,y2); else { line(x,y1,x,y2); line(x,y2,x+20,y2); } } /////////////////////////////////////////////////////// void dsignal4_1_4main(int pos) { setcolor(1); setlinestyle(0,1,lineweight); int x=x1;x1+=20; if (pos == 1 \|\| (pos != 1 && bd_4main[pos-2] == '1')) line(x,y1,x+20,y1); else { line(x,y1,x,y2); line(x,y1,x+20,y1); } } /////////////////////////////////////////////////////// void calc_sinewave_4main() { main_c_frequency = (2 pi * main_c_hz)/main_sr; for (int t = 0; t<main_c_lcycle;t++) main_c_sine_value[t] = main_c_amplitude * (sin((main_c_frequencyt)+ main_c_phase)); } ///////////////////////////// void create_analoggraph_4main() { setcolor(15); line(200,350,400,350); line(200,320,200,380); } ///////////////////////////// void create_simple_wave_4main() { int x=200,y=350,x1,y1; setcolor(1); setlinestyle(0,0,3); for(int i=0;i<main_c_lcycle;i++) { x1=x+i; if(main_c_sine_value[i] >= 0) y1=y-main_c_sine_value[i]; else y1=y+((-1)main_c_sine_value[i]); line(x1,y1,x1,y1); } } /////////////////////////////////// void askHandler(void) { int z; do{ setcolor(15); carrierDataBox(); z=carrierInputFun(); }while(z != 1); do{ setcolor(15); askDataBox(); z=askInputFun(); }while(z != 1); cleardevice(); /////////////////////digital part creategraph_digital(); createDsignal_digital(); getch(); cleardevice(); /////////////////////carrier signal calc_sinewave(); create_simple_wave(); create_graph(); getch(); cleardevice(); /////////////////////askpart create_graph_ask(); outtextxy(30,300,"Signal Without Noise "); ask_main(); getch(); cleardevice(); if(ask.noiseVal == -1) mainpage(); else /////////////////////askpart with noise {create_graph_ask(); outtextxy(30,300,"Signal With Noise "); askN_main(); getch(); cleardevice(); mainpage(); } exit(0); } /////////////////////////////////// void fskHandler(void) { int z; do{ setcolor(15); carrierDataBox(); z=carrierInputFun(); }while(z != 1); do{ setcolor(15); fskDataBox(); z=fskInputFun(); }while(z != 1); cleardevice(); /////////////////////digital part creategraph_digital(); createDsignal_digital(); getch(); cleardevice(); /////////////////////carrier signal calc_sinewave(); create_simple_wave(); create_graph(); getch(); cleardevice(); /////////////////////fskpart create_graph_fsk(); fsk_main(); getch(); cleardevice(); mainpage(); //exit(0); } /////////////////////////////////// void pskHandler(void) { int z; do{ setcolor(15); carrierDataBox(); z=carrierInputFun(); }while(z != 1); do{ setcolor(15); pskDataBox(); z=pskInputFun(); }while(z != 1); cleardevice(); /////////////////////digital part creategraph_digital(); createDsignal_digital(); getch(); cleardevice(); /////////////////////carrier signal calc_sinewave(); create_simple_wave(); create_graph(); getch(); cleardevice(); /////////////////////pskpart create_graph_psk(); psk_main(); getch(); cleardevice(); mainpage(); //exit(0); } /////////////////////////////////// void qamHandler(void) { int z; do{ setcolor(15); carrierDataBox_4qam(); z=carrierInputFun_4qam(); }while(z != 1); do{ setcolor(15); qamDataBox(); z=qamInputFun(); showDtable(); getch(); }while(z != 1); cleardevice(); /////////////////////digital part creategraph_Dqam(); createDsignal_Dqam(); getch(); cleardevice(); /////////////////////carrier signal calc_sinewave(); create_simple_wave(); create_graph(); getch(); cleardevice(); /////////////////////qampart create_graph_qam(); qam_main(); showDtable2(); getch(); cleardevice(); mainpage(); } /////////////////////////////////// void helpHandler(void) { setfillstyle(1,0); bar(130,80,639,440); setfillstyle(1,8); bar(140-4,100-4,640+4,370+4); setfillstyle(1,15); bar(140,100,634,370); setfillstyle(1,9); bar(142,102,632,120); settextstyle(2,0,4); outtextxy(145,104,"Team Profile"); setcolor(1); outtextxy(145,120+10,"Course Instructor "); outtextxy(145,130+10,"----------------- "); setcolor(9); outtextxy(145,150+10,"Kamran Ishaq Kukda"); setcolor(1); outtextxy(145,170+10,"Team Leader "); outtextxy(145,180+10,"----------------- "); setcolor(9); outtextxy(145,200+10,"Arsalan Akhtar "); outtextxy(145,210+10,"[ [email protected] ]"); setcolor(1); outtextxy(145,230+10,"Team Members "); outtextxy(145,240+10,"----------------- "); setcolor(9); outtextxy(145,260+10,"Jawaid Iqbal Bhatti"); outtextxy(145,270+10,"[ [email protected] ]"); outtextxy(145,290+10,"Kumail Haider"); outtextxy(145,300+10,"[ [email protected] ]"); outtextxy(145,320+10,"Jibran Sabhi"); outtextxy(145,330+10,"[ [email protected] ]"); getch(); setfillstyle(1,0); bar(130,80,639,440); mainpage(); } /////////////////////////////////// void exitHandler(void) { cleardevice(); outtextxy(10,10,"exit"); getch(); closegraph(); } /////////////////////////////////// void carrierDataBox() { setfillstyle(1,0); bar(130,80,639,440); setfillstyle(1,8); bar(140-4,100-4,640+4,270+4); setfillstyle(1,15); bar(140,100,634,270); setfillstyle(1,9); bar(142,102,632,120); settextstyle(2,0,4); outtextxy(145,104,"Enter 8 bits (1byte)"); setfillstyle(1,8); bar(142,130,318,162); setfillstyle(1,1); bar(144,132,316,160); setfillstyle(1,15); int xabc=150,yabc=134,xxyz,yxyz=158; for(int i=0;i<=7;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,9); bar(142,180,632,198); outtextxy(145,182,"Carrier Signal Information"); bar(142,204,220,222); outtextxy(145,206,"Amplitude"); setfillstyle(1,8); bar(225,204,272,222); setfillstyle(1,1); bar(227,206,270,220); setfillstyle(1,15); xabc=230,yabc=208,xxyz,yxyz=218; for(i=0;i<=1;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,9); bar(142,224,220,242); outtextxy(145,226,"Frequency"); setfillstyle(1,8); bar(225,224,272,242); setfillstyle(1,1); bar(227,226,270,240); setfillstyle(1,15); xabc=230,yabc=228,xxyz,yxyz=238; for(i=0;i<=1;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,9); bar(142,244,220,262); outtextxy(145,246,"Phase"); setfillstyle(1,8); bar(225,244,292,262); setfillstyle(1,1); bar(227,246,290,260); setfillstyle(1,15); xabc=230,yabc=248,xxyz,yxyz=258; for(i=0;i<=2;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,1); bar(500,244,550,262); setfillstyle(1,9); //inner bar(500+2,244+2,550-2,262-2); setfillstyle(1,1); bar(560,244,610,262); setfillstyle(1,9); //inner bar(560+2,244+2,610-2,262-2); outtextxy(510,247,"Reset"); outtextxy(570,247,"Apply"); } //////////////////////////////////////////////// int carrierInputFun() { /////////////////////////////////digit int x1=150,x2=150,y1=134,y2=158; int i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); bd_4signal[i-1] = getche(); if(bd_4signal[i-1] != '0' && bd_4signal[i-1] != '1') {i-=1;x2-=20;} graphicText(x1+4,y1+6,bd_4signal[i-1]); if(i == 8)break; x1=x2+2; }while(1); bd_4signal[8]='/0'; /////////////////////////////////amplitude x1=230,x2=230,y1=208,y2=218; char t_afp[2]; i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); t_afp[i-1] = getche(); if(t_afp[i-1] < '0' \|\| t_afp[i-1] > '9') {i-=1;x2-=20;} graphicText(x1+4,y1,t_afp[i-1]); if(i == 2)break; x1=x2+2; }while(1); c_amplitude = atoi(t_afp); //////////////////////////////////////////frequency x1=230,x2=230,y1=228,y2=238; i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); t_afp[i-1] = getche(); if(t_afp[i-1] < '0' \|\| t_afp[i-1] > '9') {i-=1;x2-=20;} graphicText(x1+4,y1,t_afp[i-1]); if(i == 2)break; x1=x2+2; }while(1); c_hz = atoi(t_afp); //////////////////////////////////////////phase x1=230,x2=230,y1=248,y2=258; i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); t_afp[i-1] = getche(); if(t_afp[i-1] < '0' \|\| t_afp[i-1] > '9') {i-=1;x2-=20;} graphicText(x1+4,y1,t_afp[i-1]); if(i == 3)break; x1=x2+2; }while(1); c_angle = atoi(t_afp); ///////////////////////////////////////////////// c_hz=10; c_phase = c_angle(2pi/360); /////////////////////////////////////////////////button int choice=0; //0 done 1 reset //x1=502;y1=246;x2=548;y2=260; x1=562;y1=246;x2=608;y2=260; setcolor(9); setfillstyle(1,15); //inner bar(x1,y1,x2,y2); //outtextxy(510,247,"Reset"); outtextxy(570,247,"Apply"); while(1) { switch(getch()) { case 77: case 75: { if(choice==0) { x1=562;y1=246;x2=608;y2=260; setcolor(15);setfillstyle(1,9);bar(x1,y1,x2,y2);outtextxy(570,247,"Apply") ; choice=1;x1=502;y1=246;x2=548;y2=260; setcolor(9);setfillstyle(1,15);bar(x1,y1,x2,y2);outtextxy(510,247,"Reset") ; } else if (choice==1) { x1=562;y1=246;x2=608;y2=260; setcolor(9);setfillstyle(1,15);bar(x1,y1,x2,y2);outtextxy(570,247,"Apply") ; choice=0;x1=502;y1=246;x2=548;y2=260; setcolor(15);setfillstyle(1,9);bar(x1,y1,x2,y2);outtextxy(510,247,"Reset") ; } break; } case ' ': if(choice == 0)return(1); else return(0); } } } /////////////////////////////////////////////// void askDataBox() { setfillstyle(1,0); bar(130,80,639,440); setfillstyle(1,8); bar(140-4,100-4,640+4,220+4); setfillstyle(1,15); bar(140,100,634,220); setfillstyle(1,9); bar(142,102,632,120); setcolor(15); settextstyle(2,0,4); outtextxy(145,104,"Amplitude Shift Keying (ASK) Information"); bar(142,124,320,142); outtextxy(145,126,"On/Off Keying Technique (OOK)"); setfillstyle(1,8); bar(332,124,358,144); setfillstyle(1,1); bar(334,126,356,142); setfillstyle(1,15); int xabc=336,yabc=128,xxyz,yxyz=140; for(int i=0;i<=0;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,9); bar(142,146,320,164); outtextxy(145,146,"Amplitude for 0 bit"); setfillstyle(1,8); bar(332,144,379,164); setfillstyle(1,1); bar(334,146,377,162); setfillstyle(1,15); xabc=336,yabc=148,xxyz,yxyz=160; for(i=0;i<=1;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,9); bar(142,166,320,184); outtextxy(145,166,"Amplitude for 1 bit"); setfillstyle(1,8); bar(332,164,379,184); setfillstyle(1,1); bar(334,166,377,182); setfillstyle(1,15); xabc=336,yabc=168,xxyz,yxyz=180; for(i=0;i<=1;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,9); bar(142,186,320,204); outtextxy(145,188,"Noisy Enviornment"); setfillstyle(1,8); bar(332,184,358,202); setfillstyle(1,1); bar(334,186,356,200); setfillstyle(1,15); xabc=336,yabc=188,xxyz,yxyz=198; for(i=0;i<=0;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,1); bar(500,184,550,204); setfillstyle(1,9); //inner bar(500+2,184+2,550-2,204-2); setfillstyle(1,1); bar(560,184,610,204); setfillstyle(1,9); //inner bar(560+2,184+2,610-2,204-2); outtextxy(510,188,"Reset"); outtextxy(570,188,"Apply"); } /////////////////////////////////////////////// int askInputFun() { ask.frequency = c_frequency; ask.phase = c_phase; int x1=336,y1=128,x2=354,y2=140; char ookCheck,t_afp[2]; /////////////////////////////////ook check int i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); ookCheck = getche(); if(ookCheck != 'n' && ookCheck != 'N' && ookCheck != 'Y' && ookCheck != 'y') {i-=1;x2-=20;} graphicText(x1+6,y1,ookCheck); if(i == 1)break; x1=x2+2; }while(1); ////////////////////////////////amp0 x1=336;x2=354;y1=148;y2=160; if (ookCheck=='y' \|\| ookCheck=='Y') { ask.amp0 = 0; setfillstyle(1,9); bar(x1,y1,x2,y2); bar(x1+20,y1,x2+20,y2); graphicText(x1+6,y1,'0'); graphicText(x1+20+6,y1,'0'); } else { i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); t_afp[i-1] = getche(); if(t_afp[i-1] < '0' \|\| t_afp[i-1] > '9') {i-=1;x2-=20;} graphicText(x1+6,y1,t_afp[i-1]); if(i == 2)break; x1=x2+2; }while(1); ask.amp0=atoi(t_afp); } ///////////////////////////////////////////////////amp1 x1=336;x2=354;y1=168;y2=180; i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); t_afp[i-1] = getche(); if(t_afp[i-1] < '0' \|\| t_afp[i-1] > '9') {i-=1;x2-=20;} graphicText(x1+6,y1,t_afp[i-1]); if(i == 2)break; x1=x2+2; }while(1); ask.amp1=atoi(t_afp); ///////////////////////////////////////////////// x1=336;x2=354;y1=188;y2=198; i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); ookCheck = getche(); if(ookCheck != 'n' && ookCheck != 'N' && ookCheck != 'Y' && ookCheck != 'y') {i-=1;x2-=20;} graphicText(x1+6,y1,ookCheck); if(i == 1)break; x1=x2+2; }while(1); if (ookCheck=='y' \|\| ookCheck=='Y') ask.noiseVal=ask.amp1; else ask.noiseVal=-1; ///////////////////////////////////////////////// int choice=0; //0 done 1 reset //x1=502;y1=186;x2=548;y2=200; x1=562;y1=186;x2=608;y2=202; setcolor(9); setfillstyle(1,15); //inner bar(x1,y1,x2,y2); //outtextxy(510,188,"Reset"); outtextxy(570,188,"Apply"); while(1) { switch(getch()) { case 77: case 75: { if(choice==0) { x1=562;y1=186;x2=608;y2=202; setcolor(15);setfillstyle(1,9);bar(x1,y1,x2,y2);outtextxy(570,188,"Apply") ; choice=1;x1=502;y1=186;x2=548;y2=202; setcolor(9);setfillstyle(1,15);bar(x1,y1,x2,y2);outtextxy(510,188,"Reset") ; } else if (choice==1) { x1=562;y1=186;x2=608;y2=202; setcolor(9);setfillstyle(1,15);bar(x1,y1,x2,y2);outtextxy(570,188,"Apply") ; choice=0;x1=502;y1=186;x2=548;y2=202; setcolor(15);setfillstyle(1,9);bar(x1,y1,x2,y2);outtextxy(510,188,"Reset") ; } break; } case ' ': if(choice == 0)return(1); else return(0); } } /getch(); closegraph(); cout<<ookCheck<<" "<<ask.amp0<<" "<<ask.amp1<<" "<<ask.noiseVal; getch(); exit(0); / } /////////////////////////////////////////////// void graphicText(int x,int y,char ch) { switch(ch) { case '0':outtextxy(x,y,"0");break; case '1':outtextxy(x,y,"1");break; case '2':outtextxy(x,y,"2");break; case '3':outtextxy(x,y,"3");break; case '4':outtextxy(x,y,"4");break; case '5':outtextxy(x,y,"5");break; case '6':outtextxy(x,y,"6");break; case '7':outtextxy(x,y,"7");break; case '8':outtextxy(x,y,"8");break; case '9':outtextxy(x,y,"9");break; case 'n':outtextxy(x,y,"N");break; case 'N':outtextxy(x,y,"N");break; case 'y':outtextxy(x,y,"Y");break; case 'Y':outtextxy(x,y,"Y");break; case '-':outtextxy(x,y,"-");break; } } ///////////////////////////////////////////////////// void calc_sinewave() { c_frequency = (2 pi * c_hz)/sr; for (int t = 0; t<c_lcycle;t++) c_sine_value[t] = c_amplitude * (sin((c_frequencyt)+ c_phase)); } ///////////////////////////// void view_data() { clrscr(); for (int t = 0,j=0; t<c_lcycle;t++,j++) { if(j==20){getch();j=0;} cout<<c_sine_value[t]<<" "; } getch(); } ///////////////////////////// void create_graph() { int csx1=40,csy1=100, csx2=600,csy2=300; setcolor(14); show_int_graph(c_amplitude,2,csx1-25,csy2-csy1-c_amplitude-5); show_int_graph(((-1)c_amplitude),3,csx1-30,csy2-csy1+c_amplitude-5); setlinestyle(0,0,1); line(csx1-4,csy2-csy1-c_amplitude,csx1+4,csy2-csy1-c_amplitude); line(csx1-4,csy2-csy1+c_amplitude,csx1+4,csy2-csy1+c_amplitude); setcolor(15); setlinestyle(1,1,1); line(csx1+6,csy2-5,csx1+c_lcycle-6,csy2-5); outtextxy(csx1+3,csy2-11,"<"); outtextxy(csx1+c_lcycle-3,csy2-11,">"); outtextxy((csx2/2)-80,csy2+5,"1 sec"); setlinestyle(0,0,3); setcolor(4); line(csx1,csy1,csx1,csy2); line(csx1,csy2-csy1,csx2,csy2-csy1); setcolor(9); setlinestyle(1,1,1); for(int i = csx1+c_lcycle; i<csx2;i+=c_lcycle) line(i,csy1,i,csy2); outtextxy(csx1,csy2+100,"Amplitude = "); outtextxy(csx1,csy2+120,"Frequency = "); outtextxy(csx1,csy2+140,"Phase = "); setcolor(15); show_int_graph(c_amplitude,2,csx1+80,csy2+100); show_int_graph(c_hz/10,2,csx1+80,csy2+120); show_int_graph(c_angle,3,csx1+80,csy2+140); settextstyle(1,0,4); setcolor(15); outtextxy(csx1,30,"CARRIER SIGNAL"); setfillstyle(1,9); bar(csx1,70,csx1+250,72); settextstyle(2,0,4);setcolor(15); outtextxy(260,460,"Press any key to continue"); //getch(); } ///////////////////////////// void create_simple_wave() { int x=40,y=200,x1,y1; setcolor(2); setlinestyle(0,0,3); for(int i=0;i<c_lcycle;i++) { x1=x+i; if(c_sine_value[i] >= 0) y1=y-c_sine_value[i]; else y1=y+((-1)c_sine_value[i]); line(x1,y1,x1,y1); } } ///////////////////////////////// void show_int_graph(int val,int l,int x,int y) { char temp[10]; itoa(val,temp,10); for(int i=0;i<l;i++) { x+=6; graphicText(x,y,temp[i]); } } //////////////////////////////////////////////////// void creategraph_digital() { y12=yvalue2-40,x12=40,y22=yvalue2; int cgx1=40,cgy1=140, cgx2=500,cgy2=yvalue2; setcolor(4); setlinestyle(0,1,3); line(cgx1,cgy1,cgx1,cgy2); line(cgx1,cgy2,cgx2,cgy2); setcolor(14); setlinestyle(1,1,1); for(int i = cgx1+40; i<cgx2;i+=40) line(i,cgy1,i,cgy2); settextstyle(1,0,4); setcolor(15); outtextxy(x12,30,"DIGITAL SIGNAL"); setfillstyle(1,9); bar(x12,70,x12+250,72); settextstyle(2,0,4);setcolor(15); outtextxy(260,460,"Press any key to continue"); int a=52,b=100; for(i=0;i<=7;i++) { setcolor(15); graphicText(a,y22-100,bd_4signal[i]); setcolor(15); graphicText(b,400,bd_4signal[i]); a+=40;b+=7; } setcolor(9); outtextxy(40,400,"Data = "); //getch(); } ///////////////////////////////////////////////////// void createDsignal_digital() { setcolor(2); int len=9; for (int i=0;i<len-1;i++) { if(bd_4signal[i] == '0') { dsignal4_0_digital(i+1); } else { dsignal4_1_digital(i+1); } } } ////////////////////////////////////////////////////// void dsignal4_0_digital(int pos) { setcolor(2); setlinestyle(0,1,lineweight); int x=x12;x12+=40; if (pos == 1 \|\| (pos != 1 && bd_4signal[pos-2] == '0')) line(x,y22,x+40,y22); else { line(x,y12,x,y22); line(x,y22,x+40,y22); } } /////////////////////////////////////////////////////// void dsignal4_1_digital(int pos) { setcolor(2); setlinestyle(0,1,lineweight); int x=x12;x12+=40; if (pos == 1 \|\| (pos != 1 && bd_4signal[pos-2] == '1')) line(x,y12,x+40,y12); else { line(x,y12,x,y22); line(x,y12,x+40,y12); } } /////////////////////////////////////////////////////// void calc_ask_sinewave(int amp01) { ask.frequency = (2 pi * c_hz)/ask_sr; for (int t = 0; t<ask_lcycle;t++) ask.sine_value[t] = amp01 * (sin((ask.frequencyt)+ ask.phase)); } //////////////////////////////////////////////////////// void calc_askN_sinewave(int amp01) { randomize(); ask.frequency = (2 pi * c_hz)/ask_sr; int namp=random(amp01); for (int t = 0,n=0; t<ask_lcycle;t++,n++) { if(n==1){namp=amp01+random(8);n=0;} ask.sine_value[t] = namp * (sin((ask.frequencyt)+ ask.phase)); } } ////////////////////////////////// void ask_main() { ask.x=32; for (int i = 0;i<8;i++) { if (bd_4signal[i] == '0') { calc_ask_sinewave(ask.amp0); create_ask_waves(); } else { calc_ask_sinewave(ask.amp1); create_ask_waves(); } } } //////////////////////////////////////////////////// void askN_main() { ask.x=32; for (int i = 0;i<8;i++) { if (bd_4signal[i] == '0') { calc_askN_sinewave(ask.amp0); create_ask_waves(); } else { calc_askN_sinewave(ask.amp1); create_ask_waves(); } } } //////////////////////////////////////////////////// void create_ask_waves() { int y=200,x1,y1; setcolor(2); setlinestyle(0,0,3); for(int i=0;i<ask_lcycle;i++) { x1=ask.x+i; if(ask.sine_value[i] >= 0) y1=y-ask.sine_value[i]; else y1=y+((-1)ask.sine_value[i]); line(x1,y1,x1,y1); } ask.x=x1; } /////////////////////////////////////////////////////// void create_graph_ask() { int csx1=30,csy1=100, csx2=620,csy2=300; setcolor(15); show_int_graph(ask.amp0,2,csx1-25,csy2-csy1-ask.amp0-5); show_int_graph(((-1)ask.amp0),3,csx1-30,csy2-csy1+ask.amp0-5); setlinestyle(0,0,1); line(csx1-4,csy2-csy1-ask.amp0,csx1+4,csy2-csy1-ask.amp0); line(csx1-4,csy2-csy1+ask.amp0,csx1+4,csy2-csy1+ask.amp0); show_int_graph(ask.amp1,2,csx1-25,csy2-csy1-ask.amp1-5); show_int_graph(((-1)ask.amp1),3,csx1-30,csy2-csy1+ask.amp1-5); setlinestyle(0,0,1); line(csx1-4,csy2-csy1-ask.amp1,csx1+4,csy2-csy1-ask.amp1); line(csx1-4,csy2-csy1+ask.amp1,csx1+4,csy2-csy1+ask.amp1); setcolor(4); setlinestyle(0,0,3); line(csx1,csy1,csx1,csy2); line(csx1,csy2-csy1,csx2,csy2-csy1); setcolor(9); setlinestyle(1,1,1); for(int i = csx1+ask_lcycle; i<csx2;i+=ask_lcycle-1) line(i,csy1,i,csy2); outtextxy(csx1,csy2+100,"Amplitude for 0 = "); outtextxy(csx1,csy2+120,"Amplitude for 1 = "); outtextxy(csx1,csy2+140,"Frequency = "); outtextxy(csx1,csy2+160,"Phase = "); setcolor(15); show_int_graph(ask.amp0,2,csx1+160,csy2+100); show_int_graph(ask.amp1,2,csx1+160,csy2+120); show_int_graph(c_hz/10,2,csx1+160,csy2+140); show_int_graph(c_angle,3,csx1+160,csy2+160); settextstyle(1,0,4); setcolor(15); outtextxy(csx1,30,"Amplitude Shift Keying"); setfillstyle(1,9); bar(csx1,70,csx1+370,72); settextstyle(2,0,4);setcolor(15); outtextxy(260,468,"Press any key to continue"); int a=54,b=csx1+166; for(i=0;i<=7;i++) { setcolor(15); graphicText(a,csy2-195,bd_4signal[i]); setcolor(15); graphicText(b,380,bd_4signal[i]); a+=ask_lcycle;b+=7; } setcolor(9); outtextxy(30,380,"Data = "); //getch(); } ////////////////////////////////////////////////////////////////// void fskDataBox() { setfillstyle(1,0); bar(130,80,639,440); setfillstyle(1,8); bar(140-4,100-4,640+4,220+4); setfillstyle(1,15); bar(140,100,634,220); setfillstyle(1,9); bar(142,102,632,120); setcolor(15); settextstyle(2,0,4); outtextxy(145,104,"Frequency Shift Keying (ASK) Information"); setfillstyle(1,9); bar(142,146,320,164); outtextxy(145,146,"Frequency for 0 bit"); setfillstyle(1,8); bar(332,144,379,164); setfillstyle(1,1); bar(334,146,377,162); setfillstyle(1,15); int xabc=336,yabc=148,xxyz,yxyz=160; for(int i=0;i<=1;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,9); bar(142,166,320,184); outtextxy(145,166,"Frequency for 1 bit"); setfillstyle(1,8); bar(332,164,379,184); setfillstyle(1,1); bar(334,166,377,182); setfillstyle(1,15); xabc=336,yabc=168,xxyz,yxyz=180; for(i=0;i<=1;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,1); bar(500,184,550,204); setfillstyle(1,9); //inner bar(500+2,184+2,550-2,204-2); setfillstyle(1,1); bar(560,184,610,204); setfillstyle(1,9); //inner bar(560+2,184+2,610-2,204-2); outtextxy(510,188,"Reset"); outtextxy(570,188,"Apply"); } /////////////////////////////////////////////// int fskInputFun() { fsk.amp = c_amplitude; fsk.phase = c_phase; int x1=336,y1=128,x2=354,y2=140; char ookCheck,t_afp[2]; /////////////////////////////////ook check int i=0; x1=336;x2=354;y1=148;y2=160; i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); t_afp[i-1] = getche(); if(t_afp[i-1] < '0' \|\| t_afp[i-1] > '9') {i-=1;x2-=20;} graphicText(x1+6,y1,t_afp[i-1]); if(i == 2)break; x1=x2+2; }while(1); fsk.hz0 = atoi(t_afp); ///////////////////////////////////////////////////amp1 x1=336;x2=354;y1=168;y2=180; i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); t_afp[i-1] = getche(); if(t_afp[i-1] < '0' \|\| t_afp[i-1] > '9') {i-=1;x2-=20;} graphicText(x1+6,y1,t_afp[i-1]); if(i == 2)break; x1=x2+2; }while(1); fsk.hz1=atoi(t_afp); ///////////////////////////////////////////////// int choice=0; //0 done 1 reset //x1=502;y1=186;x2=548;y2=200; x1=562;y1=186;x2=608;y2=202; setcolor(9); setfillstyle(1,15); //inner bar(x1,y1,x2,y2); //outtextxy(510,188,"Reset"); outtextxy(570,188,"Apply"); while(1) { switch(getch()) { case 77: case 75: { if(choice==0) { x1=562;y1=186;x2=608;y2=202; setcolor(15);setfillstyle(1,9);bar(x1,y1,x2,y2);outtextxy(570,188,"Apply") ; choice=1;x1=502;y1=186;x2=548;y2=202; setcolor(9);setfillstyle(1,15);bar(x1,y1,x2,y2);outtextxy(510,188,"Reset") ; } else if (choice==1) { x1=562;y1=186;x2=608;y2=202; setcolor(9);setfillstyle(1,15);bar(x1,y1,x2,y2);outtextxy(570,188,"Apply") ; choice=0;x1=502;y1=186;x2=548;y2=202; setcolor(15);setfillstyle(1,9);bar(x1,y1,x2,y2);outtextxy(510,188,"Reset") ; } break; } case ' ': if(choice == 0)return(1); else return(0); } } } /////////////////////////////////////////////// void calc_fsk_sinewave(int hz01) { float frequency; frequency = (2 * pi * hz01)/fsk_sr; for (int t = 0; t<fsk_lcycle;t++) fsk.sine_value[t] = fsk.amp * (sin((frequencyt)+ fsk.phase)); } //////////////////////////////////////////////// void fsk_main() { fsk.x=32; for (int i = 0;i<8;i++) { if (bd_4signal[i] == '0') { calc_fsk_sinewave(fsk.hz010); create_fsk_waves(); } else { calc_fsk_sinewave(fsk.hz110); create_fsk_waves(); } } } //////////////////////////////////////////////////// void create_fsk_waves() { int y=200,x1,y1; setcolor(2); setlinestyle(0,0,3); for(int i=0;i<fsk_lcycle;i++) { x1=fsk.x+i; if(fsk.sine_value[i] >= 0) y1=y-fsk.sine_value[i]; else y1=y+((-1)fsk.sine_value[i]); line(x1,y1,x1,y1); } fsk.x=x1; } /////////////////////////////////////////////////////// void create_graph_fsk() { int csx1=30,csy1=100, csx2=620,csy2=300; setcolor(15); show_int_graph(fsk.amp,2,csx1-25,csy2-csy1-fsk.amp-5); show_int_graph(((-1)fsk.amp),3,csx1-30,csy2-csy1+fsk.amp-5); setlinestyle(0,0,1); line(csx1-4,csy2-csy1-fsk.amp,csx1+4,csy2-csy1-fsk.amp); line(csx1-4,csy2-csy1+fsk.amp,csx1+4,csy2-csy1+fsk.amp); setcolor(4); setlinestyle(0,0,3); line(csx1,csy1,csx1,csy2); line(csx1,csy2-csy1,csx2,csy2-csy1); setcolor(9); setlinestyle(1,1,1); for(int i = csx1+fsk_lcycle; i<csx2;i+=fsk_lcycle-1) line(i,csy1,i,csy2); outtextxy(csx1,csy2+100,"Frequency for 0 = "); outtextxy(csx1,csy2+120,"Frequency for 1 = "); outtextxy(csx1,csy2+140,"Amplitude = "); outtextxy(csx1,csy2+160,"Phase = "); setcolor(15); show_int_graph(fsk.hz0,2,csx1+160,csy2+100); show_int_graph(fsk.hz1,2,csx1+160,csy2+120); show_int_graph(fsk.amp,2,csx1+160,csy2+140); show_int_graph(c_angle,3,csx1+160,csy2+160); settextstyle(1,0,4); setcolor(15); outtextxy(csx1,30,"Frequency Shift Keying"); setfillstyle(1,9); bar(csx1,70,csx1+370,72); settextstyle(2,0,4);setcolor(15); outtextxy(260,468,"Press any key to continue"); int a=54,b=csx1+166; for(i=0;i<=7;i++) { setcolor(15); graphicText(a,csy2-195,bd_4signal[i]); setcolor(15); graphicText(b,380,bd_4signal[i]); a+=ask_lcycle;b+=7; } setcolor(9); outtextxy(30,380,"Data = "); //getch(); } ////////////////////////////////////////////// void pskDataBox() { setfillstyle(1,0); bar(130,80,639,440); setfillstyle(1,8); bar(140-4,100-4,640+4,220+4); setfillstyle(1,15); bar(140,100,634,220); setfillstyle(1,9); bar(142,102,632,120); setcolor(15); settextstyle(2,0,4); outtextxy(145,104,"Phase Shift Keying (ASK) Information"); setfillstyle(1,9); bar(142,146,320,164); outtextxy(145,146,"Phase for 0 bit"); setfillstyle(1,8); bar(332,144,399,164); setfillstyle(1,1); bar(334,146,397,162); setfillstyle(1,15); int xabc=336,yabc=148,xxyz,yxyz=160; for(int i=0;i<=2;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,9); bar(142,166,320,184); outtextxy(145,166,"Phase for 1 bit"); setfillstyle(1,8); bar(332,164,399,184); setfillstyle(1,1); bar(334,166,397,182); setfillstyle(1,15); xabc=336,yabc=168,xxyz,yxyz=180; for(i=0;i<=2;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,1); bar(500,184,550,204); setfillstyle(1,9); //inner bar(500+2,184+2,550-2,204-2); setfillstyle(1,1); bar(560,184,610,204); setfillstyle(1,9); //inner bar(560+2,184+2,610-2,204-2); outtextxy(510,188,"Reset"); outtextxy(570,188,"Apply"); } /////////////////////////////////////////////// int pskInputFun() { psk.amp = c_amplitude; psk.frequency = c_frequency; int x1=336,y1=128,x2=354,y2=140; char ookCheck,t_afp[3]; int i=0; x1=336;x2=354;y1=148;y2=160; i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); t_afp[i-1] = getche(); if(t_afp[i-1] < '0' \|\| t_afp[i-1] > '9') {i-=1;x2-=20;} graphicText(x1+6,y1,t_afp[i-1]); if(i == 3)break; x1=x2+2; }while(1); psk.ang0 = atoi(t_afp); psk.phase0 = psk.ang0(2pi/360); ///////////////////////////////////////////////////amp1 x1=336;x2=354;y1=168;y2=180; i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); t_afp[i-1] = getche(); if(t_afp[i-1] < '0' \|\| t_afp[i-1] > '9') {i-=1;x2-=20;} graphicText(x1+6,y1,t_afp[i-1]); if(i == 3)break; x1=x2+2; }while(1); psk.ang1=atoi(t_afp); psk.phase1 = psk.ang1(2pi/360); ///////////////////////////////////////////////// int choice=0; //0 done 1 reset //x1=502;y1=186;x2=548;y2=200; x1=562;y1=186;x2=608;y2=202; setcolor(9); setfillstyle(1,15); //inner bar(x1,y1,x2,y2); //outtextxy(510,188,"Reset"); outtextxy(570,188,"Apply"); while(1) { switch(getch()) { case 77: case 75: { if(choice==0) { x1=562;y1=186;x2=608;y2=202; setcolor(15);setfillstyle(1,9);bar(x1,y1,x2,y2);outtextxy(570,188,"Apply") ; choice=1;x1=502;y1=186;x2=548;y2=202; setcolor(9);setfillstyle(1,15);bar(x1,y1,x2,y2);outtextxy(510,188,"Reset") ; } else if (choice==1) { x1=562;y1=186;x2=608;y2=202; setcolor(9);setfillstyle(1,15);bar(x1,y1,x2,y2);outtextxy(570,188,"Apply") ; choice=0;x1=502;y1=186;x2=548;y2=202; setcolor(15);setfillstyle(1,9);bar(x1,y1,x2,y2);outtextxy(510,188,"Reset") ; } break; } case ' ': if(choice == 0)return(1); else return(0); } } } /////////////////////////////////////////////// void calc_psk_sinewave(int ph01) { float frequency; frequency = (2 pi * c_hz)/psk_sr; for (int t = 0; t<psk_lcycle;t++) psk.sine_value[t] = psk.amp * (sin((frequencyt)+ ph01)); } //////////////////////////////////////////////// void psk_main() { psk.x=32; for (int i = 0;i<8;i++) { if (bd_4signal[i] == '0') { calc_psk_sinewave(psk.phase0); create_psk_waves(); } else { calc_psk_sinewave(psk.phase1); create_psk_waves(); } } } //////////////////////////////////////////////////// void create_psk_waves() { int y=200,x1,y1; setcolor(2); setlinestyle(0,0,3); for(int i=0;i<psk_lcycle;i++) { x1=psk.x+i; if(psk.sine_value[i] >= 0) y1=y-psk.sine_value[i]; else y1=y+((-1)psk.sine_value[i]); line(x1,y1,x1,y1); } psk.x=x1; } /////////////////////////////////////////////////////// void create_graph_psk() { int csx1=30,csy1=100, csx2=620,csy2=300; setcolor(15); show_int_graph(psk.amp,2,csx1-25,csy2-csy1-psk.amp-5); show_int_graph(((-1)psk.amp),3,csx1-30,csy2-csy1+psk.amp-5); setlinestyle(0,0,1); line(csx1-4,csy2-csy1-psk.amp,csx1+4,csy2-csy1-psk.amp); line(csx1-4,csy2-csy1+psk.amp,csx1+4,csy2-csy1+psk.amp); setcolor(4); setlinestyle(0,0,3); line(csx1,csy1,csx1,csy2); line(csx1,csy2-csy1,csx2,csy2-csy1); setcolor(9); setlinestyle(1,1,1); for(int i = csx1+psk_lcycle; i<csx2;i+=psk_lcycle-1) line(i,csy1,i,csy2); outtextxy(csx1,csy2+100,"Phase for 0 = "); outtextxy(csx1,csy2+120,"Phase for 1 = "); outtextxy(csx1,csy2+140,"Amplitude = "); outtextxy(csx1,csy2+160,"Frequency = "); setcolor(15); show_int_graph(psk.ang0,3,csx1+160,csy2+100); show_int_graph(psk.ang1,3,csx1+160,csy2+120); show_int_graph(psk.amp,2,csx1+160,csy2+140); show_int_graph(psk.frequency,2,csx1+160,csy2+160); settextstyle(1,0,4); setcolor(15); outtextxy(csx1,30,"Phase Shift Keying"); setfillstyle(1,9); bar(csx1,70,csx1+370,72); settextstyle(2,0,4);setcolor(15); outtextxy(260,468,"Press any key to continue"); int a=54,b=csx1+166; for(i=0;i<=7;i++) { setcolor(15); graphicText(a,csy2-195,bd_4signal[i]); setcolor(15); graphicText(b,380,bd_4signal[i]); a+=ask_lcycle;b+=7; } setcolor(9); outtextxy(30,380,"Data = "); //getch(); } ////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////// // void carrierDataBox_4qam() { setfillstyle(1,0); bar(130,80,639,440); setfillstyle(1,8); bar(140-4,100-4,640+4,270+4); setfillstyle(1,15); bar(140,100,634,270); setfillstyle(1,9); bar(142,102,632,120); settextstyle(2,0,4); outtextxy(145,104,"Enter 24 bits (3 bytes)"); setfillstyle(1,8); bar(142,130,560,162); setfillstyle(1,1); bar(144,132,558,160); setfillstyle(1,15); int xabc=150,yabc=134,xxyz,yxyz=158; for(int i=0;i<=23;i++) { xxyz=xabc+15; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,9); bar(142,180,632,198); outtextxy(145,182,"Carrier Signal Information"); bar(142,204,220,222); outtextxy(145,206,"Amplitude"); setfillstyle(1,8); bar(225,204,272,222); setfillstyle(1,1); bar(227,206,270,220); setfillstyle(1,15); xabc=230,yabc=208,xxyz,yxyz=218; for(i=0;i<=1;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,9); bar(142,224,220,242); outtextxy(145,226,"Frequency"); setfillstyle(1,8); bar(225,224,272,242); setfillstyle(1,1); bar(227,226,270,240); setfillstyle(1,15); xabc=230,yabc=228,xxyz,yxyz=238; for(i=0;i<=1;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,9); bar(142,244,220,262); outtextxy(145,246,"Phase"); setfillstyle(1,8); bar(225,244,292,262); setfillstyle(1,1); bar(227,246,290,260); setfillstyle(1,15); xabc=230,yabc=248,xxyz,yxyz=258; for(i=0;i<=2;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,1); bar(500,244,550,262); setfillstyle(1,9); //inner bar(500+2,244+2,550-2,262-2); setfillstyle(1,1); bar(560,244,610,262); setfillstyle(1,9); //inner bar(560+2,244+2,610-2,262-2); outtextxy(510,247,"Reset"); outtextxy(570,247,"Apply"); } //////////////////////////////////////////////// int carrierInputFun_4qam() { /////////////////////////////////digit int x1=150,x2=150,y1=134,y2=158; int i=0; do{ i+=1; x2=x1+(15); setfillstyle(1,9); bar(x1,y1,x2,y2); bd_4qam[i-1] = getche(); if(bd_4qam[i-1] != '0' && bd_4qam[i-1] != '1') {i-=1;x2-=20;} graphicText(x1+4,y1+6,bd_4qam[i-1]); if(i == 24)break; x1=x2+2; }while(1); bd_4qam[24]='/0'; /////////////////////////////////amplitude x1=230,x2=230,y1=208,y2=218; char t_afp[2]; i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); t_afp[i-1] = getche(); if(t_afp[i-1] < '0' \|\| t_afp[i-1] > '9') {i-=1;x2-=20;} graphicText(x1+4,y1,t_afp[i-1]); if(i == 2)break; x1=x2+2; }while(1); c_amplitude = atoi(t_afp); //////////////////////////////////////////frequency x1=230,x2=230,y1=228,y2=238; i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); t_afp[i-1] = getche(); if(t_afp[i-1] < '0' \|\| t_afp[i-1] > '9') {i-=1;x2-=20;} graphicText(x1+4,y1,t_afp[i-1]); if(i == 2)break; x1=x2+2; }while(1); c_hz = atoi(t_afp); //////////////////////////////////////////phase x1=230,x2=230,y1=248,y2=258; i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); t_afp[i-1] = getche(); if(t_afp[i-1] < '0' \|\| t_afp[i-1] > '9') {i-=1;x2-=20;} graphicText(x1+4,y1,t_afp[i-1]); if(i == 3)break; x1=x2+2; }while(1); c_angle = atoi(t_afp); ///////////////////////////////////////////////// c_hz=10; c_phase = c_angle(2pi/360); /////////////////////////////////////////////////button int choice=0; //0 done 1 reset //x1=502;y1=246;x2=548;y2=260; x1=562;y1=246;x2=608;y2=260; setcolor(9); setfillstyle(1,15); //inner bar(x1,y1,x2,y2); //outtextxy(510,247,"Reset"); outtextxy(570,247,"Apply"); while(1) { switch(getch()) { case 77: case 75: { if(choice==0) { x1=562;y1=246;x2=608;y2=260; setcolor(15);setfillstyle(1,9);bar(x1,y1,x2,y2);outtextxy(570,247,"Apply") ; choice=1;x1=502;y1=246;x2=548;y2=260; setcolor(9);setfillstyle(1,15);bar(x1,y1,x2,y2);outtextxy(510,247,"Reset") ; } else if (choice==1) { x1=562;y1=246;x2=608;y2=260; setcolor(9);setfillstyle(1,15);bar(x1,y1,x2,y2);outtextxy(570,247,"Apply") ; choice=0;x1=502;y1=246;x2=548;y2=260; setcolor(15);setfillstyle(1,9);bar(x1,y1,x2,y2);outtextxy(510,247,"Reset") ; } break; } case ' ': if(choice == 0)return(1); else return(0); } } } /////////////////////////////////////////////// void qamDataBox() { setfillstyle(1,0); bar(130,80,639,440); setfillstyle(1,8); bar(140-4,100-4,640+4,246+4); setfillstyle(1,15); bar(140,100,634,246); setfillstyle(1,9); bar(142,102,632,120); setcolor(15); settextstyle(2,0,4); outtextxy(145,104,"Quadrature Amplitude Modulation (QAM)"); bar(142,124,320,142); outtextxy(145,126,"First Amplitude"); setfillstyle(1,8); bar(332,124,379,144); setfillstyle(1,1); bar(334,126,377,142); setfillstyle(1,15); int xabc=336,yabc=128,xxyz,yxyz=140; for(int i=0;i<=1;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,9); bar(142,146,320,164); outtextxy(145,146,"Second Amplitude"); setfillstyle(1,8); bar(332,144,379,164); setfillstyle(1,1); bar(334,146,377,162); setfillstyle(1,15); xabc=336,yabc=148,xxyz,yxyz=160; for(i=0;i<=1;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,9); bar(142,166,320,184); outtextxy(145,166,"First Phase"); setfillstyle(1,8); bar(332,164,399,184); setfillstyle(1,1); bar(334,166,397,182); setfillstyle(1,15); xabc=336,yabc=168,xxyz,yxyz=180; for(i=0;i<=2;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,9); bar(142,186,320,204); outtextxy(145,188,"Second Phase"); setfillstyle(1,8); bar(332,184,399,202); setfillstyle(1,1); bar(334,186,397,200); setfillstyle(1,15); xabc=336,yabc=188,xxyz,yxyz=198; for(i=0;i<=2;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,9); bar(142,206,320,224); outtextxy(145,208,"Third Phase"); setfillstyle(1,8); bar(332,203,399,222); setfillstyle(1,1); bar(334,206,397,220); setfillstyle(1,15); xabc=336,yabc=208,xxyz,yxyz=218; for(i=0;i<=2;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,9); bar(142,226,320,244); outtextxy(145,228,"Fourth Phase"); setfillstyle(1,8); bar(332,223,399,242); setfillstyle(1,1); bar(334,226,397,240); setfillstyle(1,15); xabc=336,yabc=228,xxyz,yxyz=238; for(i=0;i<=2;i++) { xxyz=xabc+18; bar(xabc,yabc,xxyz,yxyz); xabc=xxyz+2; } setfillstyle(1,1); bar(500,224,550,244); setfillstyle(1,9); //inner bar(500+2,224+2,550-2,244-2); setfillstyle(1,1); bar(560,224,610,244); setfillstyle(1,9); //inner bar(560+2,224+2,610-2,244-2); outtextxy(510,228,"Reset"); outtextxy(570,228,"Apply"); } /////////////////////////////////////////////// int qamInputFun() { qam.frequency = c_frequency; char t_afp[3]; int i=0; i=0; /////////////////////////////////////////////amp1 int x1=336,y1=128,x2=354,y2=140; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); t_afp[i-1] = getche(); if(t_afp[i-1] < '0' \|\| t_afp[i-1] > '9') {i-=1;x2-=20;} graphicText(x1+6,y1,t_afp[i-1]); if(i == 2)break; x1=x2+2; }while(1); qam.amp1 = atoi(t_afp); ///////////////////////////////////////////////////amp2 x1=336;x2=354;y1=148;y2=160; i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); t_afp[i-1] = getche(); if(t_afp[i-1] < '0' \|\| t_afp[i-1] > '9') {i-=1;x2-=20;} graphicText(x1+6,y1,t_afp[i-1]); if(i == 2)break; x1=x2+2; }while(1); qam.amp2=atoi(t_afp); /////////////////////////////////////////////////phase1 x1=336;x2=354;y1=168;y2=180; i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); t_afp[i-1] = getche(); if(t_afp[i-1] < '0' \|\| t_afp[i-1] > '9') {i-=1;x2-=20;} graphicText(x1+6,y1,t_afp[i-1]); if(i == 3)break; x1=x2+2; }while(1); qam.ang1=atoi(t_afp); qam.phase1 = qam.ang1(2pi/360); /////////////////////////////////////////////////phase2 x1=336;x2=354;y1=188;y2=198; i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); t_afp[i-1] = getche(); if(t_afp[i-1] < '0' \|\| t_afp[i-1] > '9') {i-=1;x2-=20;} graphicText(x1+6,y1,t_afp[i-1]); if(i == 3)break; x1=x2+2; }while(1); qam.ang2=atoi(t_afp); qam.phase2 = qam.ang2(2pi/360); /////////////////////////////////////////////////phase3 x1=336;x2=354;y1=208;y2=218; i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); t_afp[i-1] = getche(); if(t_afp[i-1] < '0' \|\| t_afp[i-1] > '9') {i-=1;x2-=20;} graphicText(x1+6,y1,t_afp[i-1]); if(i == 3)break; x1=x2+2; }while(1); qam.ang3=atoi(t_afp); qam.phase3 = qam.ang3(2pi/360); /////////////////////////////////////////////////phase4 x1=336;x2=354;y1=228;y2=238; i=0; do{ i+=1; x2=x1+(18); setfillstyle(1,9); bar(x1,y1,x2,y2); t_afp[i-1] = getche(); if(t_afp[i-1] < '0' \|\| t_afp[i-1] > '9') {i-=1;x2-=20;} graphicText(x1+6,y1,t_afp[i-1]); if(i == 3)break; x1=x2+2; }while(1); qam.ang4=atoi(t_afp); qam.phase4 = qam.ang4(2pi/360); ///////////////////////////////////////////////// int choice=0; //0 done 1 reset //x1=502;y1=186;x2=548;y2=200; x1=562;y1=226;x2=608;y2=242; setcolor(9); setfillstyle(1,15); //inner bar(x1,y1,x2,y2); //outtextxy(510,188,"Reset"); outtextxy(570,226,"Apply"); while(1) { switch(getch()) { case 77: case 75: { if(choice==0) { x1=562;y1=226;x2=608;y2=242; setcolor(15);setfillstyle(1,9);bar(x1,y1,x2,y2);outtextxy(570,226,"Apply") ; choice=1;x1=502;y1=226;x2=548;y2=242; setcolor(9);setfillstyle(1,15);bar(x1,y1,x2,y2);outtextxy(510,226,"Reset") ; } else if (choice==1) { x1=562;y1=226;x2=608;y2=242; setcolor(9);setfillstyle(1,15);bar(x1,y1,x2,y2);outtextxy(570,226,"Apply") ; choice=0;x1=502;y1=226;x2=548;y2=242; setcolor(15);setfillstyle(1,9);bar(x1,y1,x2,y2);outtextxy(510,226,"Reset") ; } break; } case ' ': if(choice == 0)return(1); else return(0); } } } /////////////////////////////////////////////// void showDtable() { setfillstyle(1,8); bar(140-4,280-4,640,410+4); setfillstyle(1,15); bar(140,280,634,410); setfillstyle(1,9); bar(142,282,632,302); setfillstyle(1,9); bar(142,306,632,408); setfillstyle(1,1); bar(142,306,632,326); setcolor(15); settextstyle(2,0,4); outtextxy(330,286,"8-QAM Data Table"); setfillstyle(1,1); bar(142,306,242,408); setfillstyle(1,15); bar(242,306,244,410); bar(142,326,632,328); bar(142,346,632,348); bar(142,366,632,368); bar(142,386,632,388); bar(420,306,422,410); setcolor(15); setlinestyle(0,0,2); line(142,306,244,326); setcolor(15); settextstyle(2,0,4); outtextxy(189,305,"Amplitude"); outtextxy(149,314,"Phase"); setcolor(15); show_int_graph(qam.ang1,3,170,332); show_int_graph(qam.ang2,3,170,352); show_int_graph(qam.ang3,3,170,372); show_int_graph(qam.ang4,3,170,392); show_int_graph(qam.amp1,2,320,311); show_int_graph(qam.amp2,3,510,311); setcolor(1); outtextxy(320,332,"000"); outtextxy(512,332,"001"); outtextxy(320,352,"010"); outtextxy(512,352,"011"); outtextxy(320,372,"100"); outtextxy(512,372,"101"); outtextxy(320,392,"110"); outtextxy(512,392,"111"); setfillstyle(1,8); bar(560,415,620,435); setfillstyle(1,15); //inner bar(560+1,415+1,620-1,435-1); setfillstyle(1,9); //inner bar(560+2,415+2,620-2,435-2); setcolor(15); outtextxy(568,420,"Continue"); } ////////////////////////////////////////////////////////////////////////// // void creategraph_Dqam() { y12=yvalue2-20,x12=20,y22=yvalue2; int cgx1=20,cgy1=140, cgx2=500,cgy2=yvalue2; setcolor(4); setlinestyle(0,1,3); line(cgx1,cgy1,cgx1,cgy2); line(cgx1,cgy2,cgx2,cgy2); setcolor(14); setlinestyle(1,1,1); for(int i = cgx1+20; i<cgx2;i+=20) line(i,cgy1,i,cgy2); settextstyle(1,0,4); setcolor(15); outtextxy(x12,30,"DIGITAL SIGNAL"); setfillstyle(1,9); bar(x12,70,x12+250,72); settextstyle(2,0,4);setcolor(15); outtextxy(260,460,"Press any key to continue"); int a=30,b=100; for(i=0;i<=23;i++) { setcolor(15); graphicText(a,y22-100,bd_4qam[i]); setcolor(15); graphicText(b,400,bd_4qam[i]); a+=20;b+=7; } setcolor(9); outtextxy(40,400,"Data = "); //getch(); } ///////////////////////////////////////////////////// void createDsignal_Dqam() { setcolor(2); int len=25; for (int i=0;i<len-1;i++) { if(bd_4qam[i] == '0') { dsignal4_0_Dqam(i+1); } else { dsignal4_1_Dqam(i+1); } } } ////////////////////////////////////////////////////// void dsignal4_0_Dqam(int pos) { setcolor(2); setlinestyle(0,1,lineweight); int x=x12;x12+=20; if (pos == 1 \|\| (pos != 1 && bd_4qam[pos-2] == '0')) line(x,y22,x+20,y22); else { line(x,y12,x,y22); line(x,y22,x+20,y22); } } /////////////////////////////////////////////////////// void dsignal4_1_Dqam(int pos) { setcolor(2); setlinestyle(0,1,lineweight); int x=x12;x12+=20; if (pos == 1 \|\| (pos != 1 && bd_4qam[pos-2] == '1')) line(x,y12,x+20,y12); else { line(x,y12,x,y22); line(x,y12,x+20,y12); } } /////////////////////////////////////////////////////// /////////////////////////////////////////////// void calc_qam_sinewave(int phase,int amp) { float frequency; frequency = (2 * pi * c_hz)/qam_sr; for (int t = 0; t<qam_lcycle;t++) qam.sine_value[t] = amp * (sin((frequencyt)+ phase)); } //////////////////////////////////////////////// void qam_main() { qam.x=32; for (int i = 0;i<25;i+=3) { if (bd_4qam[i] == '0' && bd_4qam[i+1] == '0' && bd_4qam[i+2] == '0') { calc_qam_sinewave(qam.phase1,qam.amp1); create_qam_waves(); } else if (bd_4qam[i] == '0' && bd_4qam[i+1] == '0' && bd_4qam[i+2] == '1') { calc_qam_sinewave(qam.phase1,qam.amp2); create_qam_waves(); } else if (bd_4qam[i] == '0' && bd_4qam[i+1] == '1' && bd_4qam[i+2] == '0') { calc_qam_sinewave(qam.phase2,qam.amp1); create_qam_waves(); } else if (bd_4qam[i] == '0' && bd_4qam[i+1] == '1' && bd_4qam[i+2] == '1') { calc_qam_sinewave(qam.phase2,qam.amp2); create_qam_waves(); } else if (bd_4qam[i] == '1' && bd_4qam[i+1] == '0' && bd_4qam[i+2] == '0') { calc_qam_sinewave(qam.phase3,qam.amp1); create_qam_waves(); } else if (bd_4qam[i] == '1' && bd_4qam[i+1] == '0' && bd_4qam[i+2] == '1') { calc_qam_sinewave(qam.phase3,qam.amp2); create_qam_waves(); } else if (bd_4qam[i] == '1' && bd_4qam[i+1] == '1' && bd_4qam[i+2] == '0') { calc_qam_sinewave(qam.phase4,qam.amp1); create_qam_waves(); } else if (bd_4qam[i] == '1' && bd_4qam[i+1] == '1' && bd_4qam[i+2] == '1') { calc_qam_sinewave(qam.phase4,qam.amp2); create_qam_waves(); } } } //////////////////////////////////////////////////// void create_qam_waves() { int y=200,x1,y1; setcolor(2); setlinestyle(0,0,3); for(int i=0;i<fsk_lcycle;i++) { x1=qam.x+i; if(qam.sine_value[i] >= 0) y1=y-qam.sine_value[i]; else y1=y+((-1)qam.sine_value[i]); line(x1,y1,x1,y1); } qam.x=x1; } /////////////////////////////////////////////////////// void create_graph_qam() { int csx1=30,csy1=100, csx2=620,csy2=300; setcolor(15); show_int_graph(qam.amp1,2,csx1-25,csy2-csy1-qam.amp1-5); show_int_graph(((-1)qam.amp1),3,csx1-30,csy2-csy1+qam.amp1-5); show_int_graph(qam.amp2,2,csx1-25,csy2-csy1-qam.amp2-5); show_int_graph(((-1)qam.amp2),3,csx1-30,csy2-csy1+qam.amp2-5); setlinestyle(0,0,1); line(csx1-4,csy2-csy1-qam.amp1,csx1+4,csy2-csy1-qam.amp1); line(csx1-4,csy2-csy1+qam.amp1,csx1+4,csy2-csy1+qam.amp1); line(csx1-4,csy2-csy1-qam.amp2,csx1+4,csy2-csy1-qam.amp2); line(csx1-4,csy2-csy1+qam.amp2,csx1+4,csy2-csy1+qam.amp2); setcolor(4); setlinestyle(0,0,3); line(csx1,csy1,csx1,csy2); line(csx1,csy2-csy1,csx2,csy2-csy1); setcolor(9); setlinestyle(1,1,1); for(int i = csx1+qam_lcycle; i<csx2;i+=qam_lcycle-1) line(i,csy1,i,csy2); settextstyle(2,0,4); outtextxy(csx1+360,csy2+10,"Frequency for 0 = "); setcolor(15); show_int_graph(c_hz,2,csx1+480,csy2+10); settextstyle(1,0,4); setcolor(15); outtextxy(csx1,30,"QAM"); setfillstyle(1,9); bar(csx1,70,csx1+370,72); settextstyle(2,0,4);setcolor(15); outtextxy(260,468,"Press any key to continue"); int a=54,b=csx1+166; for(i=0;i<=25;i+=3) { setcolor(15); graphicText(a,csy2-195,bd_4qam[i]); graphicText(a+7,csy2-195,bd_4qam[i+1]); graphicText(a+7+7,csy2-195,bd_4qam[i+2]); setcolor(15); graphicText(b,310,bd_4qam[i]); b+=7; graphicText(b,310,bd_4qam[i+1]); b+=7; graphicText(b,310,bd_4qam[i+2]); a+=ask_lcycle;b+=7; } setcolor(9); outtextxy(40,310,"Data = "); //getch(); } ////////////////////////////////////////////// void showDtable2() { setfillstyle(1,8); bar(140-4-100,280-4+50,640-100,410+4+50); setfillstyle(1,15); bar(140-100,280+50,634-100,410+50); setfillstyle(1,9); bar(142-100,282+50,632-100,302+50); setfillstyle(1,9); bar(142-100,306+50,632-100,408+50); setfillstyle(1,1); bar(142-100,306+50,632-100,326+50); setcolor(15); settextstyle(2,0,4); outtextxy(330-100,286+50,"8-QAM Data Table"); setfillstyle(1,1); bar(142-100,306+50,242-100,408+50); setfillstyle(1,15); bar(242-100,306+50,244-100,410+50); bar(142-100,326+50,632-100,328+50); bar(142-100,346+50,632-100,348+50); bar(142-100,366+50,632-100,368+50); bar(142-100,386+50,632-100,388+50); bar(420-100,306+50,422-100,410+50); setcolor(15); setlinestyle(0,0,2); line(142-100,306+50,244-100,326+50); setcolor(15); settextstyle(2,0,4); outtextxy(189-100,305+50,"Amplitude"); outtextxy(149-100,314+50,"Phase"); setcolor(15); show_int_graph(qam.ang1,3,170-100,332+50); show_int_graph(qam.ang2,3,170-100,352+50); show_int_graph(qam.ang3,3,170-100,372+50); show_int_graph(qam.ang4,3,170-100,392+50); show_int_graph(qam.amp1,2,320-100,311+50); show_int_graph(qam.amp2,3,510-100,311+50); setcolor(1); outtextxy(320-100,332+50,"000"); outtextxy(512-100,332+50,"001"); outtextxy(320-100,352+50,"010"); outtextxy(512-100,352+50,"011"); outtextxy(320-100,372+50,"100"); outtextxy(512-100,372+50,"101"); outtextxy(320-100,392+50,"110"); outtextxy(512-100,392+50,"111"); }

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